Cefzil Dosage

Available as a tablet or an oral suspension (liquid), Cefzil is prescribed to treat certain infections. The Cefzil dosage you receive will be based on the type and severity of your infection, your age and weight, and other medical conditions you have, among other factors. Also, if your kidneys are not functioning well, you may need a lower amount.


An Introduction to Dosing With Cefzil

The dose of Cefzil® (cefprozil) your healthcare provider recommends will vary, depending on factors such as:
  • Your age
  • Your weight
  • The type and severity of the infection being treated
  • How well your kidneys are functioning
  • Other medical conditions you may have.
As is always the case, do not adjust your dosage unless your healthcare provider specifically tells you to do so.

What Is the Recommended Dosage of Cefzil for Adults?

The standard Cefzil dosage for treating various infections is usually as follows:
  • For pharyngitis ("strep throat") or tonsillitis in adults -- 500 mg every 24 hours for 10 days
  • For sinus infections -- 250 mg or 500 mg for 10 days
  • For bronchitis -- 500 mg every 12 hours for 10 days
  • For skin and skin structure infections -- 250 mg every 12 hours or 500 mg every 12 or 24 hours, for 10 days.
If your kidneys are not functioning well, your healthcare provider may recommend a lower dose.

Cefzil Dosing in Children

The standard recommended Cefzil dosage for children will vary, depending mostly on the child's weight and the type of infection. In general, the standard amount is 7.5 mg to 15 mg per kg (about 3.4 mg to 6.8 mg per lb) twice a day or 20 mg per kg (about 9.1 mg per lb) once daily for 10 days.
Cefzil liquid comes in two different strengths: 125 mg per 5 mL and 250 mg per 5 mL. After it is mixed, you should keep it in the refrigerator and discard any unused portion after 14 days.
If your kidneys are not functioning well, your healthcare provider may recommend a lower dose of Cefzil.
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